An autographed Luka Dončić rookie card with an actual patch from a game-worn jersey is about to hit the auction block, and TMZ Sports has learned it could sell for 7 figures!!

The super-rare card — soon headed to the PWCC Premier Auction — is 1 of just 5 copies in existence. The last time a similar card sold, it went for a million bucks.

Officials at PWCC tell us this isn’t just any ordinary NBA rookie card … in fact, reps say the keepsake is one-of-a-kind due to the Emerald color scheme it boasts.

The front of the card features 23-year-old Luka shooting a jump shot … along with the patch from his Mavs jersey.

Luka, the third overall pick in the 2018 NBA Draft, has become one of the most effective offensive players in the world … he’s virtually unstoppable.

Dončić, a native of Slovenia, has drawn parallels to NBA legend Larry Bird for his ability to score, rebound, and facilitate at an elite level — in addition to the leadership skills he displays.

Despite only playing 4 full seasons, Luka is already 10th on the NBA’s all-time triple-double list — with 46 — behind Bird, who’s ahead of him at 9th on the list.

And, PWCC exec Jesse Craig says the card could actually end up being a bargain.

“The question now is if he can win a ring. If he leads Dallas to a championship – or to multiple championships – the demand for his assets is likely to keep going up. To find this card, in this low of quantity, right now is an incredible opportunity.”